:root{
  --bg:#0b0f14;
  --panel:#111826;
  --panel2:#0f1623;
  --text:#e7edf6;
  --muted:#a7b3c6;
  --line:#243145;
  --accent:#7dd3fc;
  --danger:#ff6b6b;
  --ok:#7CFFB2;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --radius: 16px;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  background: radial-gradient(1200px 600px at 20% -10%, rgba(125,211,252,.18), transparent 55%),
              radial-gradient(900px 500px at 90% 0%, rgba(124,255,178,.10), transparent 50%),
              var(--bg);
  color:var(--text);
  line-height:1.5;
}

a{ color:inherit; }
.container{ width:min(1100px, 92%); margin-inline:auto; }

.skip-link{
  position:absolute; left:-999px; top:auto; width:1px; height:1px; overflow:hidden;
}
.skip-link:focus{
  left:1rem; top:1rem; width:auto; height:auto; padding:.6rem .8rem;
  background:var(--panel); border:1px solid var(--line); border-radius:10px; z-index:9999;
}

/* Header */
.site-header{
  position:sticky; top:0; z-index:50;
  background: rgba(11,15,20,.75);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(36,49,69,.6);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding: .9rem 0;
  gap:1rem;
}
.brand{ display:flex; align-items:center; gap:.6rem; font-weight:700; }
.logo{
  display:inline-grid; place-items:center;
  width:34px; height:34px; border-radius:12px;
  background: linear-gradient(145deg, rgba(125,211,252,.25), rgba(124,255,178,.12));
  border:1px solid rgba(125,211,252,.25);
  box-shadow: var(--shadow);
}
.brand-text{ font-size:1.05rem; }

.site-nav{ display:flex; align-items:center; gap:.4rem; }
.nav-link{
  text-decoration:none;
  padding:.55rem .8rem;
  border-radius:12px;
  border:1px solid transparent;
  color:var(--muted);
}
.nav-link:hover{ color:var(--text); border-color: rgba(125,211,252,.25); }
.nav-link.active{
  color:var(--text);
  border-color: rgba(125,211,252,.35);
  background: rgba(17,24,38,.55);
}

.menu-btn{
  display:none;
  align-items:center;
  gap:.6rem;
  border:1px solid rgba(36,49,69,.7);
  background: rgba(17,24,38,.55);
  color: var(--text);
  padding:.55rem .8rem;
  border-radius: 12px;
  cursor:pointer;
}
.menu-icon{
  width:18px; height:12px; position:relative; display:inline-block;
}
.menu-icon::before, .menu-icon::after, .menu-icon span{
  content:"";
  position:absolute; left:0; right:0;
  height:2px; background: rgba(231,237,246,.9);
  border-radius: 2px;
}
.menu-icon::before{ top:0; }
.menu-icon::after{ bottom:0; }
.menu-icon span{ top:5px; }
.menu-text{ font-weight:600; }

/* Main */
.site-main{ padding: 1.2rem 0 2rem; }
.page-head{
  margin: 1rem 0 1rem;
  padding: 1rem 1.1rem;
  border: 1px solid rgba(36,49,69,.7);
  background: rgba(17,24,38,.35);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.page-head h1{ margin:0; font-size: clamp(1.25rem, 2vw, 1.6rem); }
.muted{ color: var(--muted); margin:.35rem 0 0; }

.content{
  margin-top: 1rem;
  display:grid;
  gap: 1rem;
}

.card{
  border: 1px solid rgba(36,49,69,.7);
  background: rgba(17,24,38,.35);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem 1.1rem;
}

.grid{
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
.project-card h3{ margin:.2rem 0 .4rem; }
.badge{
  display:inline-block;
  padding:.25rem .55rem;
  border-radius: 999px;
  border:1px solid rgba(125,211,252,.25);
  background: rgba(125,211,252,.12);
  color: var(--text);
  font-size: .85rem;
}
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:.6rem .8rem;
  border-radius: 12px;
  border:1px solid rgba(36,49,69,.7);
  background: rgba(17,24,38,.55);
  color: var(--text);
  text-decoration:none;
  cursor:pointer;
}
.btn:hover{ border-color: rgba(125,211,252,.35); }

.form-row{ display:grid; gap:.5rem; margin-bottom:.9rem; }
label{ font-weight:600; }
input, textarea{
  width:100%;
  padding:.7rem .8rem;
  border-radius: 12px;
  border:1px solid rgba(36,49,69,.8);
  background: rgba(15,22,35,.65);
  color: var(--text);
  outline:none;
}
input:focus, textarea:focus{
  border-color: rgba(125,211,252,.5);
}
.help{ font-size:.9rem; color: var(--muted); }
.msg{
  margin-top:.8rem;
  padding:.7rem .8rem;
  border-radius: 12px;
  border:1px solid rgba(36,49,69,.7);
  background: rgba(17,24,38,.35);
}
.msg.ok{ border-color: rgba(124,255,178,.35); }
.msg.err{ border-color: rgba(255,107,107,.35); }

.site-footer{
  border-top: 1px solid rgba(36,49,69,.6);
  padding: 1.1rem 0 1.6rem;
  color: var(--muted);
}
.footer-inner{
  display:flex; align-items:center; justify-content:space-between;
  gap:1rem;
  flex-wrap:wrap;
}

/* Responsive */
@media (max-width: 900px){
  .grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 768px){
  .menu-btn{ display:inline-flex; }
  .site-nav{
    position:absolute;
    top: 64px;
    right: 4%;
    left: 4%;
    display:none;
    flex-direction:column;
    padding: .6rem;
    border-radius: var(--radius);
    background: rgba(17,24,38,.92);
    border: 1px solid rgba(36,49,69,.7);
    box-shadow: var(--shadow);
  }
  .site-nav.open{ display:flex; }
  .nav-link{ width:100%; }
  .grid{ grid-template-columns: 1fr; }
}